Search International and National Patent Collections

1. (WO2018122570) COMPOSITIONS TO STABILIZE ASPHALTENES IN PETROLEUM FLUIDS

Pub. No.:    WO/2018/122570    International Application No.:    PCT/IB2016/001980
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 31 00:59:59 CET 2016
IPC: C09K 8/524
Applicants: STEPAN EUROPE S.A.S.
M-I L.L.C.
SCHLUMBERGER NORGE AS
Inventors: COLE, Rachael Anne
DESHPANDE, Pradyumna Avinash
KHANDEKAR, Chandrashekhar Yeshwant
NORDVIK, Tore
REGNAULT DE LA MOTHE, Loic
SHAW, Elodie
CANAL, Laure
DUGAND, Marine
SANTIAGO, José
Title: COMPOSITIONS TO STABILIZE ASPHALTENES IN PETROLEUM FLUIDS
Abstract:
Compositions may include those of the formula: (I) wherein R1 is an alkyl chain having a carbon number in the range of greater than 40 to 200, R2 is a multiester, R3 is hydrogen, an ion, or an alkyl chain having a carbon number in the range of 1 to 200, m is an integer selected from 0 to 4, and n is an integer selected from the range of 0 to 4, wherein the sum of m and n is 1 or greater. Compositions may include a reaction product of a polyisobutylene-substituted succinic anhydride and a hydroxy- functional dendrimer, wherein the molar ratio of polyisobutylene-substituted succinic anhydride to hydroxy-functional dendrimer is within the range of 10: 1 to 30: 1.